Accession Number : ADD001282

Title :   Induced Doppler Sonar.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Booth,Newell O

Report Date : 30 Jul 1974

Pagination or Media Count : 8

Abstract : The patent describes an object bearing detection system comprising of broad-band transmitting electroacoustic transducer and a similar broad-band receiving electroacoustic transducer. The two electroacoustic transducers are combined in an active ranging system such that the transducer is responsible to echo returns from signals produced by the transmitting transducer. The electrical output from the receiving transducer is processed by a plurality of narrow-band filters to obtain bearing information from the returned signals as a function of the Doppler shift of the signals.

Descriptors :   *Doppler sonar, *Patents, Electroacoustic transducers, Signal processing, Doppler effect, Band pass filters, Narrowband

Subject Categories : Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE